package com.zzyl.framework.interceptor;

import cn.hutool.core.map.MapUtil;
import com.zzyl.common.exception.base.BaseException;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.common.utils.UserThreadLocal;
import com.zzyl.framework.web.service.TokenService;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class MemberInterceptor implements HandlerInterceptor {
    @Autowired
    private TokenService tokenService;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("authorization");
        if (StringUtils.isEmpty(token)) {
            throw new BaseException("认证失败");
        }
        Claims claims = tokenService.parseToken(token);
        if (claims.isEmpty()) {
            throw new BaseException("认证失败");
        }
        Long id = MapUtil.get(claims, "id", Long.class);
        if (id == null) {
            throw new BaseException("认证失败");
        }
        UserThreadLocal.set(id);
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        UserThreadLocal.remove();
    }
}
